.. propellants
.. _`propellants_link`:
.. This file is generated by "build_propellants_page.py"
Propellants
===========
The table below displays the propellants built in to RocketCEA.
Click any of the names to see the card deck submitted to CEA for that propellant.
If your propellant is not included, or if you disagree with the definitions,
new propellants can be added, and existing propellants can be modified.
Any use of RocketCEA begins with an import statement and an instance of CEA_Obj::
from rocketcea.cea_obj import CEA_Obj
C = CEA_Obj( oxName='N2O4', fuelName='MMH')
Bipropellant runs use **oxName** and **fuelName** to define propellants.
For Monopropellants and Solid Propellants, the instance of CEA_Obj uses **propName**::
from rocketcea.cea_obj import CEA_Obj
C = CEA_Obj( propName='HYD40')
`Click Propellant Name to View Definition`
.. raw:: html
Special Blends
--------------
There are a number of special blends that can be created when making an instance of CEA_Obj.
Hydrazine Monopropellant
************************
The performance of :ref:`Hydrazine Monopropellant ` engines is driven by the amount of ammonia dissociation that
the catalyst bed delivers. Any amount of ammonia dissociation can be run by calling out the **propName**
as "HYD" + weight percent dissociation.
Note that the CEA FORTRAN code has been modified to include "Undissociated Ammonia (UA)" as an exhaust product.
The CEA input also includes an "omit NH3" statement to prevent normal NH3 calculations.
The examples below call out 30, 40 and 50 percent ammonia dissociation.::
C = CEA_Obj( propName='HYD30')
C = CEA_Obj( propName='HYD40')
C = CEA_Obj( propName='HYD50')
MMH + N2H4
**********
Mixtures of MMH and N2H4 are often used to suppress the freezing point of N2H4.
M20 is a common mixture (20% MMH + 80% N2H4 by weight). The examples below call out 10, 20 and 30 percent MMH::
C = CEA_Obj( oxName='N2O4', fuelName='M10')
C = CEA_Obj( oxName='N2O4', fuelName='M20')
C = CEA_Obj( oxName='N2O4', fuelName='M30')
Mixed Oxides of Nitrogen
************************
Mixtures of N2O4 and NO are often used to suppress the freezing point of N2O4.
MON25 is a common mixture (25% NO + 75% N2O4 by weight).
When NO is added to N2O4, there are two main equilibrium reactions::
N2O4 <==> 2 NO2
NO + NO2 <==> N2O3
For this reason, the input cards for MON oxidizers include N2O4 and N2O3.
The weight percentages are calculated based on the equilibrium equations above.
The examples below call out MON oxidizers with 15, 20 and 25 percent NO::
C = CEA_Obj( oxName='MON15', fuelName='MMH')
C = CEA_Obj( oxName='MON20', fuelName='MMH')
C = CEA_Obj( oxName='MON25', fuelName='MMH')
Peroxide + Water
****************
Peroxide is often blended with water in order to enhance its stability and improve its safety.
While the debate about an appropriate blend of Peroxide rages on, analyzing it with RocketCEA
simply requires calling it out as "Peroxide" + weight percent Peroxide.
The examples below call out 90, 95 and 98 percent Peroxide::
C = CEA_Obj( propName='Peroxide90')
C = CEA_Obj( propName='Peroxide95')
C = CEA_Obj( propName='Peroxide98')
C = CEA_Obj( oxName='Peroxide98', fuelName="MMH")
FLOX
****
FLOX is a mixture of Fluorine and Oxygen.
Call out the mixture as "FLOX" + weight percent of Fluorine.
The examples below call out 60, 70 and 80 percent Fluorine::
C = CEA_Obj( oxName='FLOX60', fuelName="LH2")
C = CEA_Obj( oxName='FLOX70', fuelName="LH2")
C = CEA_Obj( oxName='FLOX80', fuelName="LH2")
Oxidizers
---------
.. raw:: html
90_H2O2
*******
::
oxid H2O2(L) H 2 O 2 wt%=90.00
h,cal=-44880.0 t(k)=298.15 rho.g/cc=1.407
oxid = WATER H 2.0 O 1.0 wt%= 10.0
h,cal=-68317. t(k)=298.15 rho.g/cc=1.0
.. raw:: html
98_H2O2
*******
::
oxid H2O2(L) H 2 O 2 wt%=98.00
h,cal=-44880.0 t(k)=298.15 rho.g/cc=1.407
oxid = WATER H 2.0 O 1.0 wt%= 2.0
h,cal=-68317. t(k)=298.15 rho.g/cc=1.0
.. raw:: html
AIR
***
::
oxid Air wt%=100.00
h,cal=-28.2 t(k)=298.15
.. raw:: html
AIRSIMP
*******
::
oxid AIRSIMP N 1.5622 O .4192 Ar .0093
h,cal=0. t(k)=298.15
.. raw:: html
CLF3
****
::
oxid CLF3(L) CL 1 F 3 wt%=100.00
h,cal=-45680.0 t(k)=298.15
.. raw:: html
CLF5
****
::
oxid CLF5(L) CL 1 F 5 wt%=100.00
h,cal=-60500.0 t(k)=298.15
.. raw:: html
F2
**
::
oxid F2(L) F 2
h,cal=-3098. t(k)=82.02 wt%=100.
.. raw:: html
GO2
***
::
oxid O2(G) O 2
h,cal=0. t(k)=298.15 wt%=100.
.. raw:: html
GOX
***
::
oxid O2(G) O 2
h,cal=0. t(k)=298.15 wt%=100.
.. raw:: html
H2O
***
::
oxid water H 2.0 O 1.0 wt%=100.0
h,cal=-68308. t(k)=298.15 rho,g/cc = 0.9998
.. raw:: html
H2O2
****
::
oxid H2O2(L) H 2 O 2 wt%=100.00
h,cal=-44880.0 t(k)=298.15 rho.g/cc=1.407
.. raw:: html
HAN315
******
::
oxid = HAN C 0.064 H 4.296 N 2.062 O 4.1 P 0.008 wt%= 44.5
h,cal=-93980. t(k)=298.15 rho.g/cc=1.685
oxid = HEHN C 2.0 H 9.0 N 3.0 O 4.0 wt%= 44.5
h,cal=-108000. t(k)=298.15 rho.g/cc=1.428
oxid = WATER H 2.0 O 1.0 wt%= 11.0
h,cal=-68000. t(k)=298.15 rho.g/cc=1.0
.. raw:: html
HNO3
****
::
oxid HNO3(L) H 1 N 1 O 3 wt%=100.00
h,cal=-42460.0 t(k)=298.15 rho.g/cc=1.5027
.. raw:: html
IRFNA
*****
::
oxid IRFNA H 1.57216 N 1.62945 O 4.69505 F 0.02499 wt%=100.00
h,cal=-64860.0 t(k)=298.15 rho.g/cc=1.48
.. raw:: html
LO2
***
::
oxid O2(L) O 2
h,cal=-3102. t(k)=90.18 wt%=100.
.. raw:: html
LO2_NASA
********
::
oxid O2(L) O 2
h,cal=-3102.055 t(k)=90.17 wt%=100.
.. raw:: html
LOX
***
::
oxid O2(L) O 2
h,cal=-3102. t(k)=90.18 wt%=100.
.. raw:: html
MON15
*****
::
oxid N2O4(L) N 2 O 4 wt%=62.01
h,cal=-4676.0 t(k)=298.15
oxid N2O3 N 2 O 3 wt%=37.99
h,cal=12020.7 t(k)=298.15
.. raw:: html
MON25
*****
::
oxid N2O4(L) N 2 O 4 wt%=36.67
h,cal=-4676.0 t(k)=298.15
oxid N2O3 N 2 O 3 wt%=63.33
h,cal=12020.7 t(k)=298.15
.. raw:: html
MON3
****
::
oxid N2O4(L) N 2 O 4 wt%=100.00
h,cal=-4676.0 t(k)=298.15
.. raw:: html
N2F4
****
::
oxid N2F4(L) N 2 F 4
h,cal=-5200.0 t(k)=199.0 wt%=100.
.. raw:: html
N2H4
****
::
oxid N2H4(L) N 2 H 4 wt%=100.
h,cal=12100.0 t(k)=298.15 rho=1.0036
.. raw:: html
N2O
***
::
oxid NitrousOxide N 2.0 O 1.0 wt%=100.00
h,cal= 19467.0 t(k)=298.15
.. raw:: html
N2O3
****
::
oxid N2O3(L) N 2 O 3 wt%=100.00
h,cal=12020.7 t(k)=298.15
.. raw:: html
N2O4
****
::
oxid N2O4(L) N 2 O 4 wt%=100.00
h,cal=-4676.0 t(k)=298.15
.. raw:: html
N2O_nbp
*******
::
oxid NitrousOxide N 2.0 O 1.0 wt%=100.00
h,cal= 14583.0 t(k)=184.4
.. raw:: html
O2
**
::
oxid O2(L) O 2
h,cal=-3102. t(k)=90.18 wt%=100.
.. raw:: html
OF2
***
::
oxid OF2(L) O 1 F 2
h,cal=2524. t(k)=167.0 wt%=100.
.. raw:: html
Peroxide90
**********
::
oxid H2O2(L) H 2 O 2 wt%=90.00
h,cal=-44880.0 t(k)=298.15 rho.g/cc=1.407
oxid = WATER H 2.0 O 1.0 wt%= 10.0
h,cal=-68317. t(k)=298.15 rho.g/cc=1.0
.. raw:: html
Peroxide98
**********
::
oxid H2O2(L) H 2 O 2 wt%=98.00
h,cal=-44880.0 t(k)=298.15 rho.g/cc=1.407
oxid = WATER H 2.0 O 1.0 wt%= 2.0
h,cal=-68317. t(k)=298.15 rho.g/cc=1.0
Fuels
-----
.. raw:: html
A50
***
::
fuel C2H8N2(L),UDMH wt% 50. t(k) 298.15
h,cal=11900.0 t(k)=298.15 rho=.783
fuel N2H4(L) N 2 H 4 wt%=50.
h,cal=12100.0 t(k)=298.15 rho=1.0036
.. raw:: html
Acetylene
*********
::
fuel Acetylene C 2 H 2 wt%=100.
h,cal=54324. t(k)=198.3 rho=0.9
.. raw:: html
AL
**
::
fuel Aluminum t(k)=298.15 AL 1 wt%=100.00
h,cal=0.0 t(k)=298.15
.. raw:: html
AP
**
::
fuel NH4CLO4(I) wt%=100.00
.. raw:: html
B2H6
****
::
fuel B2H6(L) B 2 H 6
h,cal=4970.0 t(k)=180.0 wt%=100.
.. raw:: html
C2H2
****
::
fuel Acetylene C 2 H 2 wt%=100.
h,cal=54324. t(k)=198.3 rho=0.9
.. raw:: html
C2H5OH
******
::
fuel C2H5OH(L) C 2 H 6 O 1
h,cal=-66370.0 t(k)=298.15 wt%=100.
.. raw:: html
C2H6
****
::
fuel C2H6(L) C 2 H 6 wt%=100.
h,cal=-24797.0 t(k)=184.56 rho=0.5808
.. raw:: html
C2H6_167
********
::
fuel C2H6(L) C 2 H 6 wt%=100.
h,cal=-25296.0 t(k)=167.0 rho=0.5808
.. raw:: html
C3H8
****
::
fuel C3H8(L) C 3 H 8 wt%=100.
h,cal=-30372. t(k)=231.08 rho=0.5808
.. raw:: html
CFx
***
::
fuel CFx C 1.0 F 1.0 wt%=100.00
h,cal=57863.0 t(k)=298.15 rho=1.8200
.. raw:: html
CH3OH
*****
::
fuel CH3OH(L) C 1 H 4 O 1
h,cal=-57040.0 t(k)=298.15 wt%=100.
.. raw:: html
CH4
***
::
fuel CH4(L) C 1 H 4 wt%=100.
h,cal=-21390. t(k)=111.66 rho=0.4239
.. raw:: html
CINCH
*****
::
fuel CINCH(L) C 4. H 10. N 4.
h,cal=66550. t(k)=298.15 wt%=100.
.. raw:: html
DMAZ
****
::
fuel dmaz C 4.0 H 10.0 N 4.0 wt%= 100.00
h,cal=66548. t(k)=298.15 rho,g/cc = 0.93
.. raw:: html
ECP_dimer
*********
::
fuel ECP-dimer(L) C 10. H 10.
h,cal=123600. t(k)=298.15 wt%=100.
.. raw:: html
Ethanol
*******
::
fuel C2H5OH(L) C 2 H 6 O 1
h,cal=-66370.0 t(k)=298.15 wt%=100.
.. raw:: html
ETHANOL
*******
::
fuel C2H5OH(L) C 2 H 6 O 1
h,cal=-66370.0 t(k)=298.15 wt%=100.
.. raw:: html
Gasoline
********
::
fuel Gasoline C 8 H 18
h,cal=-49809. t(k)=298.15 rho=0.7025
.. raw:: html
GCH4
****
::
fuel CH4(G) C 1 H 4
h,cal=-17895.0 t(k)=298.15 wt%=100.
.. raw:: html
GH2
***
::
fuel H2(G) H 2
h,cal=0. t(k)=298.15 wt%=100.
.. raw:: html
GH2_160
*******
::
fuel H2(G) H 2
h,cal=-940. t(k)=160.0 wt%=100.
.. raw:: html
H2
**
::
fuel H2(L) H 2
h,cal=-2154.0 t(k)=20.27 wt%=100.
.. raw:: html
H2O
***
::
fuel water H 2.0 O 1.0 wt%=100.0
h,cal=-68308. t(k)=298.15 rho,g/cc = 0.9998
.. raw:: html
HTPB
****
::
fuel R-45(HTPB FROM_RPL_DATA) C 7.3165 H 10.3360 O 0.1063 wt%=100.00
h,cal= 1200.0 t(k)=298.15 rho=0.9220
.. raw:: html
Isopropanol
***********
::
fuel C3H8O-2propanol C 3 H 8 O 1 wt%=100.
h,cal=-65133. t(k)=298.15 rho=0.786
.. raw:: html
JetA
****
::
fuel Jet-A(L) C 12.0 H 23.0
h,cal=-72466.6 t(k)=298.15 rho=0.815
.. raw:: html
JP10
****
::
fuel JP10 C 10 H 16 wt%=100.00
h,cal=-29350. t(k)=298.15 rho=0.9318
.. raw:: html
JP4
***
::
fuel Kerosene C 1 H 1.9532 wt%=50.00
h,cal=-5769. t(k)=298.15 rho=0.8
fuel Gasoline C 8 H 18 wt%=50.00
h,cal=-49809. t(k)=298.15 rho=0.7025
.. raw:: html
JPX
***
::
fuel C2H8N2(L),UDMH wt%=60. t(k) 298.15
h,cal=11900.0 t(k)=298.15 rho=.783
fuel Kerosene C 1 H 1.9532 wt%=30.00
h,cal=-5769. t(k)=298.15 rho=0.8
fuel Gasoline C 8 H 18 wt%=30.00
h,cal=-49809. t(k)=298.15 rho=0.7025
.. raw:: html
Kerosene
********
::
fuel Kerosene C 1 H 1.9532
h,cal=-5769. t(k)=298.15 rho=0.8
.. raw:: html
Kerosene90_H2O10
****************
::
fuel Kerosene C 1 H 1.9532 wt%=90.00
h,cal=-5769. t(k)=298.15 rho=0.8
fuel = WATER H 2.0 O 1.0 wt%= 10.0
h,cal=-68317. t(k)=298.15 rho.g/cc=1.0
.. raw:: html
LCH4_NASA
*********
::
fuel CH4(L) C 1 H 4 wt%=100.
h,cal=-21327.199 t(k)=111.643 rho=0.4239
.. raw:: html
LH2
***
::
fuel H2(L) H 2
h,cal=-2154.0 t(k)=20.27 wt%=100.
.. raw:: html
LH2_NASA
********
::
fuel H2(L) H 2
h,cal=-2153.920 t(k)=20.27 wt%=100.
.. raw:: html
M20
***
::
fuel CH6N2(L) C 1 H 6 N 2 wt%=20.0
h,cal=12900.0 t(k)=298.15 rho=.874
fuel N2H4(L) N 2 H 4 wt%=80.0
h,cal=12100.0 t(k)=298.15 rho=1.0036
.. raw:: html
M20_NH3
*******
::
fuel CH6N2(L) C 1 H 6 N 2 wt%=17.9
h,cal=12900.0 t(k)=298.15 rho=.874
fuel N2H4(L) N 2 H 4 wt%=71.6
h,cal=12100.0 t(k)=298.15 rho=1.0036
fuel NH3(L) N 1 H 3 wt%=10.5
h,cal=-17090. t(k)=298.15 rho=0.676
.. raw:: html
Methanol
********
::
fuel CH3OH(L) C 1 H 4 O 1
h,cal=-57040.0 t(k)=298.15 wt%=100.
.. raw:: html
METHANOL
********
::
fuel CH3OH(L) C 1 H 4 O 1
h,cal=-57040.0 t(k)=298.15 wt%=100.
.. raw:: html
MHF3
****
::
fuel CH6N2(L) C 1 H 6 N 2 wt%=86.0
h,cal=12900.0 t(k)=298.15 rho=.874
fuel N2H4(L) N 2 H 4 wt%=14.0
h,cal=12100.0 t(k)=298.15 rho=1.0036
.. raw:: html
MMH
***
::
fuel CH6N2(L) C 1 H 6 N 2 wt%=100.00
h,cal=12900.0 t(k)=298.15 rho=.874
.. raw:: html
N2H4
****
::
fuel N2H4(L) N 2 H 4 wt%=100.
h,cal=12100.0 t(k)=298.15 rho=1.0036
.. raw:: html
NH3
***
::
fuel NH3(L) N 1 H 3 wt%=100.
h,cal=-17090. t(k)=298.15 rho=0.676
.. raw:: html
NITROMETHANE
************
::
fuel nitroMethane C 1. H 3. N 1. O 2. wt%= 100.00
h,cal=-27030. t(k)=298.15 rho,g/cc =1.1371
.. raw:: html
Propane
*******
::
fuel C3H8(L) C 3 H 8 wt%=100.
h,cal=-30372. t(k)=231.08 rho=0.5808
.. raw:: html
Propylene
*********
::
fuel C3H6,propylene C 3 H 6 wt%=100.
h,cal=4776.92 t(k)=298.15 rho=0.0018
.. raw:: html
propylene
*********
::
fuel C3H6,propylene C 3 H 6 wt%=100.
h,cal=4776.92 t(k)=298.15 rho=0.0018
.. raw:: html
RP1
***
::
fuel RP-1 C 1 H 1.9423
h,cal=-5430. t(k)=298.15 rho=0.773
.. raw:: html
RP1_NASA
********
::
fuel RP-1 C 1 H 1.95
h,cal=-5907.672 t(k)=298.15 rho=0.773
.. raw:: html
RP_1
****
::
fuel RP-1 C 1 H 1.9423
h,cal=-5430. t(k)=298.15 rho=0.773
.. raw:: html
UDMH
****
::
fuel C2H8N2(L),UDMH wt% 50. t(k) 298.15
h,cal=11900.0 t(k)=298.15 rho=.783
Monoprop & Solid
----------------
.. raw:: html
AMT_2091
********
::
name NH4NO3 H 4.9968 O 3.7476 N 2.4984 wt%=75.00
h,cal=-109019.9966 t(k)=298.15 rho=1.7250
name (NH4)2CR2O7 H 3.1733 O 2.7766 N 0.7933 CR 0.7933 wt%=2.00
h,cal=-168780. t(k)=298.15 rho=2.1500
name A-20_GENPOL C 4.5500 H 7.1000 O 2.3900 wt%=7.24
h,cal=-111000. t(k)=298.15 rho=1.0380
name METHYL_ACRYLATE C 4.6464 H 6.9696 O 2.3232 wt%=11.08
h,cal=-111300. t(k)=298.15 rho=1.2000
name POLYSTYRENE C 7.6817 H 7.6817 wt%=3.957
h,cal=8000. t(k)=298.15 rho=1.0600
name MAKP C 5.3768 H 10.7535 O 1.5362 wt%=0.40
h,cal=-134060. t(k)=298.15 rho=0.8500
name CALCIUM_PHOSPHATE P 0.6447 CA 0.9671 O 2.5790 wt%=0.50
h,cal=-300500. t(k)=298.15 rho=3.1400
name TIN_OCTOATE C 3.9497 H 7.4057 O 0.9874 PB 0.0948 CU 0.1521 wt%=0.003
h,cal=-76120. t(k)=298.15 rho=1.0000
name LECITHIN C 5.5611 H 11.1223 O 1.2692 N 0.1208 wt%=0.18
h,cal=-63010. t(k)=298.15 rho=1.0220
.. raw:: html
AP10_RDX25_HTPB
***************
::
name NH4CLO4(I) wt%=10.0
name RDX C 1.3506 H 2.7011 O 2.7011 N 2.7011 wt%=25.00
h,cal=6610. t(k)=298.15 rho=1.8200
name R-45(HTPB FROM_RPL_DATA) C 7.3165 H 10.3360 O 0.1063 wt%=65.00
h,cal= 1200.0 t(k)=298.15 rho=0.9220
.. raw:: html
ARC311
******
::
name ARC311 H 3.919935 C 2.237043 N 2.300870 O 2.309573 wt%=100.00
h,cal= 3939.6 t(k)=298.15 rho=1.634
.. raw:: html
ARC448
******
::
name ARC448 H 3.359766 C 2.052322 N 1.932190 O 2.806300 wt%=100.00
h,cal= -36867.1 t(k)=298.15 rho=1.537
.. raw:: html
ARC452
******
::
name ARC452 H 3.694563 C 2.469813 N 1.041212 O 3.251794 wt%=100.00
h,cal= -67947.0 t(k)=298.15 rho=1.473
.. raw:: html
ARC457
******
::
name ARC457 H 4.080395 C 1.238333 N 1.677693 O 3.593891
wt%=100.00 h,cal= -80325.0 t(k)=298.15 rho=1.594
.. raw:: html
HAN269
******
::
name = HAN N 2.0 H 4.0 O 4.0 wt%= 69.15
h,cal=-80962. t(k)=298.15 rho,g/cc = 1.685
name = MEOH C 1.0 H 4.0 O 1.0 wt%= 15.46
h,cal=-57146. t(k)=298.15 rho,g/cc = 0.791
name = water H 2.0 O 1.0 wt%= 14.80
h,cal=-68256. t(k)=298.17 rho,g/cc=1.00
name = AN H 4.0 N 2.0 O 3.0 wt%= 0.59
h,cal=-87380. t(k)=298.17 rho,g/cc=1.725
.. raw:: html
HAN315
******
::
name = HAN C 0.064 H 4.296 N 2.062 O 4.1 P 0.008 wt%= 44.5
h,cal=-93980. t(k)=298.15 rho.g/cc=1.685
name = HEHN C 2.0 H 9.0 N 3.0 O 4.0 wt%= 44.5
h,cal=-108000. t(k)=298.15 rho.g/cc=1.428
name = WATER H 2.0 O 1.0 wt%= 11.0
h,cal=-68000. t(k)=298.15 rho.g/cc=1.0
.. raw:: html
HPB24
*****
::
name = diss UA 0.6667 H 2.0000 N 1.3333 wt%= 71.46
h,cal=12094. t(k)=298.15 rho,g/cc = 1.004
name = water H 2.0 O 1.0 wt%=0.5
h,cal=-68308. t(k)=298.15 rho,g/cc = 0.9998
name = hydra H 4.0 N 2.0 wt%= 4.04
h,cal=12094. t(k)=298.15 rho,g/cc = 1.004
name = hydni N 3.000 H 5.000 O 3.000 wt%= 24.00
h,cal=-50477. t(k)=298.15 rho,g/cc = 1.647
.. raw:: html
HYD40
*****
::
name = diss UA 0.800 H 1.600 N 1.200 wt%= 99.5
h,cal=12094. t(k)=298.15 rho,g/cc = 1.004
name = water H 2.0 O 1.0 wt%=0.5
h,cal=-68308. t(k)=298.15 rho,g/cc = 0.9998
! THIS IS 40% AMMONIA DISSOCIATION
omit NH3